Packaging machine



July 1.2., 1932. H. s. LABQMBARDE PACKAGING MACHINE Filed Aug. 7, 1930 4 Sheets-Sheet 1l n Sw ww July 12, 1932. H. s. LABOMBARDE PACKAGING MACHINE 4 Sheets-Sheet 2 Filed Aug. '7, 1950- y.. ..Vf

`luly l2, 1932.

H, S. LABOMBARDE' PACKAGING MACHINE Filed Aug. 7. 1930 4 Sheets-Sheet 3 Ji ve 27 to 71 Haifa fd flnoiiibarde July l2, 1932. H. s. LABOMBARDE PACKAGING MACHINE 4 sneets-shef 4 Filed Aug. '7, 195o dtoiigy Patented July 12, 1932 Usi-rse srares HAROLD s. LABOMBARDE, or

increas- NAsrrUA, New HAMPSHIRE PACKAGING MAC-irma Y 'Application mea August "z,

This invention relates to the economic production of heavy sealed packages capable of storage, transportation and delivery without liability of injury to the goodsv or breakage of the seals, and has particular reference 'to such packaging of sheets olf/paper material, although not being limited-to any particular kind or quality of the goods. To suitably pack for shipment, a large to quantity of such goods as sheets Vof paper, great care has been required and a large amount ot time consumed to ensure delivery of the Vgoods in proper condition. For eX- ample, a ream of paper such as card board sheets 22 X 28 may weigh from 150 to 175 pounds. T o prevent the sheets from slipping relatively to each other, or having corner portions bent, expert packing is required. To hold such a package tightly, various means are employed such as rope or metal straps. And even then, if the package is tol be sealed, reliable sealing is difficult to accomplish.

One of the objects of the present invention is to provide means for securely sealing packages of heav goods such as hat sheets of paper or cardboard, in a carton, without requiring additional securing means such as rope, twine, metal straps, or even sealing tape.

Another object is to provide means for the packaging of such goods in cartons which may be loaded to various depths and sealed at Y such depths of loading, without requiring any addition to the carton members to hold them 5 sealed. q

With the above-mentioned objects in view, and others hereinafter referred to, the invention consists inthe mechanism and the parts thereof substantially as hereinafter dem scribed and claimed.

Of the accompanying drawings zl Figure 1 is a plan view of the machine, a

small portion thereof being broken out.

Figure 2 is a side elevationof the machine. Figure 3 Vrepresents a section on line 3 3 of Figure 2.

Figure 4 represents a section on line 4-.4

'of Figure 2.

D Figure 5 represents a section on line 5-5 5 of Figure 3,*on a larger scale, and omitting i930. serial; No. 473,657.

some of the package-supportingrolls, to avoid confusion of lines.

Figure 6 is a detail view of the releasablev packageearresting mechanism.

' Figure 7 represents a section on line 7-7 of Figure 6.

' Figures 8 and 9 are perspective views of the sealed.

Y Similar reference characters indicatesimilar parts of features in all of the views;

The machine as a whole is designed to facilitate the preparation of goods for shipment, by providing means whereby', after the recep tacle member of a carton is supplied with goods and a. cover member is applied theretwo members of a carton to be loaded and over, the cover member Vis slidably conipressed onto the receptacle member to closely conline the contents, and portions of the receptacle and cover members are sealed together while under pressure, the advantages of' which are pointed out in the application Serial- Number 467 ,443, filed July 12, 1930, by Carl E. Lincoln. f n

The frame of the main, portion of themaf 'the carriages have base'portions 21 (seedot-V ted lines in Figure 3) to which are connected internally threaded sleeves 22 engaged by right and left'hand screws 23 whereby,fas will be explained, the two carriagesumay -be shifted toward and from each oth-er as indicated by the full and dotted line positions Y illustrated in Figure 4. kTo ensure direct 'inward movementof the carriages 19 Vwhen eX- erting inward pressure on a carton betweenV lchine comprises lower side members `12 sup-V f them as will be described, to oppose tendency of the carriages to tilt backwardly, the inward end portionsot the'bases 21'pass under rolls 18 supported by the cross bars' 18.

` At the mid-length of each carriage 19 (Fig.

5) is a bracket 24 having a roll 25 riding on a fixed cross rail 26.

Idly mounted in bearings in the bracket 24 and in bearings at the ends of the carriages 19 are long rolls 27, and extending from one endof each carriage is a finger 28 having an outwardly extending or flaring tip. Y

To eect simultaneous movement of the two carriages with their rolls 27 toward and from each other, the ends of 'the right and left hand screws'23 are provided, at one side of the machine, with sprockets 29 1, 2 and 3) which are engaged by an endless chain 30, the latter also engaging a sprocket 31 carriedbyastudshaitr32 mounted in. a

bearing 33 and having a wheel 34 provided with a lh-andjle 35.

Between the two carriages 19 and rigidly supported by the Yframe olf the machine, as -by struts such as illustrated in Figures3 and y4 are two -long angle bars 36 providing bear- @ings for `a series 'of rolls 37 Said bars 36 and their rolls 37 extend for an indeiinite dif'- tance from the left of Figures 1, 2 and 5, to provide a platform on which the receptacle member of a. carton may restwhile being loaded or iilled with the articles, such as sheets of .paper or cardboard, that are to be packaged. To facilitate an understanding of the Autility oi' the machine, Figure 2 ,illus trates, by dotted lines, aportion ci the receptacle member Aoa carton supported on the rolls3'7 of the s upply platform.

To properly direct the package, when shitted from vthe loading or supply end of the u platform 36, 37, to position between the carriages l19guide strips 38 are provided, said strips having diverging ends 39 (Fig. 1) and being supported by rods 40 `adjustably mounted in sleeve brackets-41 which, `in turn, are adjustably mounted on the uprights 15 (Figs. 4'and The .adjustable mountings ,Ijustdescribed are to provide licor operation on 'cliiierent sizes of cartons.

' Each upper 'frame'bar Y14, at aboutits inidlength, has an aperture for a vertical screw 42 (Figs. 1 and 5) secured-to and rising from 4a cross bracket 43. The two brackets 43 are connected by two plates-44 (Figs-3, 4 and 5) 4W'hiehact as pressers as hereinafter described. VSecured to t-he top of each bar .14 'a small bracket i457having an aperture 'through vwhich the upper end of the screw '42'-extends. In the space between .each bracket 45 and the bar 14 is a bushing 4 6 internally threaded to fit the screw 42 andfhaving a sprocket 47. A chain48 engages ythetwo sprocketsf47 and is also-engaged by a sprocket 49 (Figs. v1, 2 and 3) carried lby a bushing S50 mounted rotatably on the upper end o'f" one ofithe uprights and having a wheel 5 1 provided 'with a handle 5 2. This Vchain a'lsoengages a sprocket (Figs. land 2.)

carried by a sleeve 54 yadjustab lyfmfmnted on sides ot the bracket or shaft 69 lbearings carried byblocks 70 which latter are Vadjustable along ways 71 supported by the .twopressureplates '44,said adjustable mountecting shoulder Vplates f one of the rods 17 to serve as a tightener for the chain. By means of the wheel 51 and its handle, the chain 48 may be actuated to that position. The mechanism for pushing the lpackage against said stop plate will now be described.

.A shaft 5.5 (Figsl, `2 and 3) is mounted nat one end in a bearing providedin a bracket 56 mounted on one or' the uprights 15., and gat-the other vend in al bearing provided `in a bracketportion 57 ofone of the upper frame bars 14. Securedto said shaft 55, Aat opposite 57, isa 4iframe 58 having a cross'pin 59 on which is mounted the push- .ing plate V60 (Fig. 5). The outer end ofthe shaft 55 has a pinion'61 engaged by a worm 62mounted ina bearing yin a bracket 63 secured to Vthe upright l5 below the described bracket 56,

provided with a handlej65 by means of which said worm having a wheel 64 the swinging frame 58 and its pusher plate 60 can be swung down from the 'raised position illustrated in Figures 2, 3 and 5 and caused .to press acomplete carton in front of -it against the stop which will now be described.

The Vplate '66 which serves Vas the stop is temporarily .locked in vertical position, but canbe released soa-s to swing out of the way to permit a-sealed package to be moved onto the delivery Vplatform presently described.

Saidplate 66 isimounted on a rod 67 depending vfrom a sleeve 68 mounted on a cross pin .the ends of which are mounted in ing being provided .to enable the stop plate `to be v:located variably in a direction longi- .tudina'lly of the Amachine according to the sizes oit the packages to bev operated upon.

The sleeve 68 (Figs. 2, 6 and 7 has a pro- 72 the rear surface 7.3 of which .is somewhat cam-shaped. A latch 74 cooperates, when inthe lfullfline position Figure 7, in holding the stoppl'ate 66 locked in Aits vertical operative position, but -is releas- .able'bythemechanismnow to be described.

Thelowerpart of the latch 74 is pivoted at .7 5 to lugs -76 projecting from the sleeve 68 F ig. 6") a fork 78 at one end of a rod 79 the other end :of ewhich is .connected to Vone arm 80o'f an elbow lever which is pivoted at 81 to a block 82 `mounted on fone yof lthe pressure A spring 8 3, connected to thearm andts. upper'pat is pivoted at 77 to l and to a suitable xedpoint,tends to hold wardly, the elbow lever eXerts a pull on the Vrod .79 in opposition to the spring 83 and rocks the latch to the dotted line position in Figure 7 thereby unelocking the members hung on the shaft 69 and permitting them to be swung out of the way. Upon release of the rod 86, the spring 83 tends to return the latch 74 to its normal position; Ifthe swinging members have not then returned to position with the stop 66 in normal vertical position, the tip ofthe latch 74 will simply move onto the cam surface 73 for a moment, but the kcomplete swinging down of the said members will permit the latch to engage the shoulder 72 and so automatically effect the relocking of the plate 66 in vertical position.

Beyond the stop plate 66 is the delivery platform illustrated as comprising suitably supported bars 89 providing bearings for a series of rolls 90. Said bars and rolls eX- tend for an indefinite distance at the delivery end of the machine. As shown in Figure 1, the rolls 90 are much longer than the rolls 37 at the loading or entrance end of the machine and those along the pressing part of the ma-V chine. The reason for this will be explained. To apply two stripes of adhesive material to those areas of the bottom of the receptacle iember a (Fig.V 9)` againstwhich the flaps c of the cover member b (Fig. 8) are to be folded and pressed, two rolls 91 are provided. Said rolls are carried by a shaft 92 mounted in bearings 93 supported by the frame of the machine, the lower portions of the rolls dipping in glue or other suitable adhesive in a tank 94. Suitable scraper or doctor blades are illustrated at 95. vThe said shaft and rolls may be idly mounted or may be ro-y tated by power if desired. The shaft bearings are yieldingly supported as illustrated in Figure 2. v

As has been stated, the principal object of the present invention is to provide a machine whereby sealed packages of heavy goods can be prepared for shipment without requiring any surrounding additional securing means. The operation of the machine to attainthis object will now be described A lower or receptacle member a (Fig. 9), a portion of which is illustrated by dotted lines in Figure 2, is loaded with goods such as paper sheets while resting on the rolls 37 at the supply or entrance end of the machine, and then the cover member ZJ' (Fig. 8), the side walls of which have depending flaps c, is placed over the member a. Then the com plete carton is pushed along .over the platform rolls 37 until'it reaches the stop plate 66, leaving room for thevloading of another carton on theoutwardly extending portion of said platform. When the inwardly pushed carton reaches, oris about to reach, the `stop plate66, the frame 58 is swung down by means of the wheel 64 vand `the worm gearing, to cause thepusher 60 to press forcibly against the rear end of the package and carry'it against the stop 66` underl some compression. On its way to the position just described, the

dependingxflaps c c pass freely'along the t n spacesat opposite sides of the platform 36,

37, to belater folded under the bottom Aof the receptacle, memberV a, which bottom has received, 'during the travel of the carton just described, two stripes of adhesive applied by the rolls 91 along those bottom areas against which the flaps c c' are. to be folded and pressed." Y. v

After the package arrives in the position f described and while it is being held firmly betweenthe plates 60, 66, it is subjected to two operations, either substantially simultaneously or one after the other. One is to force the -plates 44 down on the cover member and (e slidably move it down closely on the contents of the receptacle member and press it firmly ontoV the receptacle member to leave no space between the jcover member and the top of the layers of material confined in the carton@ This is eifected by operating the wheel 51 and actuating the chain 48 to cause thelatter to rotate the internally threaded bushings 46 on the screws 42. `While it is preferable, for some goods, that the receptacle member g Ashall be completely filled to its top before kapplying the cover member, I do not limit myself to such'practice. V The other-one of the two operations mentioned, is to force the two carriages 19 in toward each other so that the rolls 27 thereof move from the full-line positions (Fig. 4) to the dotted line positions, vand effect folding ofthe aps c c under those portions of the receptaclemember to "which the stripes vof .adhesive were applied bythe rolls 91. This operation of the carriages iseffected by actuating thewheel 34 and the chain 30.v The sealing of the package just referred to is maintained while the package is subjected to compression by the plates 44 and can last while another carton receptacle is being filled on the projecting portion of the platform 36, 37, and a cover member app-lied thereto. Such maintenance ofthe loaded and sealed carton under pressure ensures such firm adhesion of the flaps c c (see the dotted indication of thefcartonvin Figure 4) that no additional securing members arev required. I After such'length of time as is desirable, the leaded and 4sealed carton is pushed toward and onto the platform 89, 90. To permit this to be done, the rod 86 is pushed inso as to effect movement of thelatch 7 4to 'the dotted line position illustrated in Figure 7,l

thereby unlocking the sto-p plateV 66 so that it canbe freely swung up by the outwardly moving carton. rfhe said carton, and several similar ones, can beleft on thedelivery platmforin), 90,- for a considerable time if such be advisable to permit the adhesiveto become more firmly set, the weight ofthe contents of the cartons ensuring continued pressure on the bottom. F or this reason it is preferable lo. to have said delivery platform"considerably longer than illustra-ted in the drawings'. As illustrated in Figure l, the platform provided by the members 89,v 90,'is considerably wider than that portion of the platform on which 15 the cartons are supported diiring loading and compression. rllie narrower portion permits the cover members of the cartons to be fitted closely on the filled receptacle members, with the flaps c c extending straight down, and peririits the assembled members to be moved along betwen the guide members 38 to position under the compression plates 44, with the flaps stil-l extending straight down where they can be acted upon by the inwardly movable flap folding rolls ofthe carriages 19.v As illustrated by Figures 3 and 4l there are ample spaces between opposite sides of the platform 36, 37,. and the guides 38, to permit the flaps of the cover members to be folded in without Contact of said iaps with the sides of the platform. But the delivery portion of the platform is wider to effect maintenance of pressure' on the sealing fiaps of those cartons moved thereonto, as has been described.V

During the operation of the machine, it is preferable to leave the carriages 19 and their rolls 27 in their inward positions, and the presser plates le down, to secure lirm adherence of the inwardly folded flaps before the carton is moved onto the delivery7 platform'. This is to enable the inwardly posi- -tioiiedrolls 2? to support the flaps c c against the pressure of the plates 44.

Having now' described my invention, l claim 1. A machine for securing a cover niember having wall Hapsto a receptacle member, said machine having means for slidably compressing the cover member onto the receptacle member, and said machine having means for effecting the overlapping of portions of a container, and means for simultaneously effecting sealing of the package and subjecting' it to pressure.l

2. A packaging machine for operating on a filled receptacle having a cover, said inachine having means for slidably compressing the cover onto the receptacle, and means for folding portions of the cover under the bottom of the receptacle.

3. n packaging machine for operating on a filled receptaclehaving a cover, said inachine having means for slidably compressing the cover onto the receptacle, and means for folding portions of the cover under the bottorn' of the receptacle,- and means for exerting pressure against the said folded portions.

4. A machine for securing a cover member having wall flaps to arec'eptac'le member, said machine having means for slidably compressing the cover member onto the receptacle member, and having folders for 0perating on portions of the cover member of the package, said folders being movable t0- 'ward each other in a plane to fold portions of the cover member under' the bottom of the package.

5. A; machine for securing a cover inember having wall flaps to a receptacle ineinber, said machine having means for slidably compressing the cover member onto the receptacle member and having folders for op'- erating on portions of the cover member,` said folders being movable toward each other in al plane to fold portions of the cover member under the bottom of the package, and means for applying adhesive in locations to effect retention of the said portions of the cover member in their folded positions.

6. A; machine such as specified in claim 5 and having mean-s for eXerting continued pressure on the package.

7. A machine for securing a cover member having wall flaps to a receptacle member, said machine having means for slidably compressing the cover member onto the receptaclemember, and having a'platform for supporting packages during compression, sai-d platform having a Awidened extension at one end.

8. A machine for securing a cover member having wall flaps to a receptacle meinbei', said machine having means for slidably compressing the cover member onto the receptacle member, and having a platform for supporting packages during compression,

:said platform having a widened extension at one end, the said platform and its extension having rolls for the Contact of the packages therewith.

9. A machine for securing a cover meinber having depending flaps to a receptacle member, said machine having means for slidably compressing the cover member onto the receptacle member, and having a platform one end of which is narrower than the other, rolls at opposite sides of the narrower portion of the platform to apply adhesive to portions of the bottom of the receptacle member, and means at another point of the platform for turning the flaps of the cover member under the receptacle member and applying pressure thereon.

l0. A machine for securing a cover memberliaviiig depending flaps to a receptacle member, said machine having means for slidably compressing. the cover member onto the receptacle member, an'd having a plat-V form, a pusher for moving the assembled members to a definite position on said platform, and means for turning the aps of the cover member under the receptacle member and exerting pressure thereon While in said position on the platform. Y

,5T 11. A machine for securing a cover member having depending iiaps to a receptacle member, said machine having means Vfor slidably compressing the cover member onto the receptacle member, and having a platform, pressure plates above the platform, means for actuating said pressure plates, and means for turning the aps of the cover member under the receptacle member.

12. A machine for securing a cover member lia-ving depending flaps to a receptacle member, said machine having means for slidably compressing the cover member onto the receptacle member, and having a platform, pressure plates above the platform,

2g means for actuating said pressure plates, and inwardly movable folders at opposite sides Y of the platform for turning the flaps Aof the cover member under the receptacle member; 13. A machine for securing a cover member having depending iaps to a receptacleV member, said machine having means for slidably compressing the cover member onto the receptacle member, and having a plat- K form, pressure plates above the platform` means for actuating said pressure plates, and inwardly movable carriages at opposite sides of the platform having rolls to engage the aps of the'cover member and turn them. under the receptacle member.

14. A machine for securing a cover member having depending liaps to a receptacle member, said machine having means for slidably compressing the cover member onto the receptacle member. and having a lplat- `10 form. a stop for determining the proper position for said members on the platform, pressure plates above the platform, means for actuating said pressure plates, and means Y y for turning the Haps of the cover member -115 under the receptacle member.

15. A machine for securing a cover member having depending flaps to a receptacle member, said machine having a platform` a pivoted stop above the platform, releasable means for locking said stop in operative posi-A tion to 'determine the proper position for said members on the platform, and means for turning the flaps of the cover member'under the receptacle member and subiecting the .55 Whole to pressure, While in the position determined by said stop.

In testimony whereof I have aiiiXed my signature.

HAROLD S. LAB OMBARDE.

Lill() 

